The role of mucosal flaps in external dacryocystorhinostomy.

PURPOSE: To determine whether a mucosal anastomosis fashioned at the time of external dacryocystorhinostomy (DCR) influences postoperative outcome. METHODS: The clinical records of all patients who underwent external DCR at Sydney Eye Hospital between May 2000 and August 2007 were reviewed. Data were collected in regards to surgical technique, clinical outcomes and postoperative management. Chi-square statistical analysis was done to determine the significance of the different flap techniques on surgical success. RESULTS: A total of 260 medical records were reviewed. The main outcome measure was postoperative resolution of symptoms. The mean final follow-up time was 11 months. There was no statistically significant difference in outcome between patients who had both anterior and posterior flaps sutured, compared to those who had anterior flap sutures only (73% vs 79%, p = 0.51). Patients who had no sutured flaps had an overall success rate of 89% compared to those that had at least the anterior flaps sutured together (76%); this difference was not significant (p = 0.45). CONCLUSION: There was no statistical difference in symptom outcome between patients in whom both mucosal flaps were sutured, those who had only the anterior flap sutured, or those who did not have either flap sutured at the time of surgery.

External dacryocystorhinostomy: assessing factors that influence outcome.

PURPOSE: To present the experience of external dacryocystorhinostomy (DCR) at a tertiary referral center and investigate factors that may affect clinical outcomes. METHODS: The clinical records of all patients who underwent external DCR at Sydney Eye Hospital between May 2000 and August 2007 were reviewed. Data were collected in regards to patient demographics, preoperative assessment, operative details, surgical technique, postoperative management, and clinical outcomes. This information was then analyzed, with emphasis on factors that influence surgical outcomes and success. RESULTS: A total of 338 cases were reviewed. The mean age at time of surgery was 64.82 years and the majority of patients were female (65%). Epiphora was the major preoperative symptom. Assisted local anesthesia and day stay surgery were the most common surgical settings. There was a statistically significant difference in theatre time between consultant and trainee surgeons (P < 0.00001). The mean final follow-up time was 11 months. Overall, 77.3% of patients had full resolution of symptoms and 20.8% had partial resolution. Only five patients (1.9%) had no resolution of symptoms. There was no significant difference in outcomes between consultants and trainees. Patients with anatomical nasolacrimal obstruction had significantly better outcomes compared with functional obstruction (P = 0.04). The postoperative fluorescein dye disappearance test was a good predictor of clinical success (P = 0.005). Silicone intubation for greater than 6 months was associated with better outcomes (P = 0.002). CONCLUSIONS: The results at our tertiary center are comparable to results stated in the literature. In our series, only the amount of nasolacrimal obstruction and duration of postoperative intubation influenced surgical success.

A technique for medial canthal fixation using resorbable poly-L-lactic acid-polyglycolic acid fixation kit.

Achieving secure bony fixation of medial canthus is a challenge. We used a resorbable poly-L-lactic acid-polyglycolic acid screw (LactoSorb office fixation kit) in 5 cases: 2 with traumatic medial canthal dystopia, 1 with scleroderma and orbital fat atrophy causing malapposition of the medial canthus to globe, and 2 with invasive medial canthal tumors necessitating subtotal medial orbital exenteration. The resorbable screw with preplaced suture was drilled into the medial orbital wall, using a handheld self-drilling tap. The preplaced suture was used to anchor the medial canthus. We achieved satisfactory canthal position in all 5 cases. There were no complications in 4 cases during a mean +/- SD follow-up of 11.3 +/- 6 months; however, the scleroderma case developed wound dehiscence 6 weeks after surgery. The LactoSorb kit is a safe and effective technique to achieve bony medial canthal fixation in carefully selected cases.

Evaluation of the cosmetic significance of external dacryocystorhinostomy scars.

PURPOSE: To evaluate the significance of the surgical scar of external dacryocystorhinostomy (DCR) as assessed by the patients. DESIGN: Cross-sectional questionnaire-based study. METHODS: Two hundred ninety-seven external DCRs were performed in 263 patients at the private practices of consultants who were attached to the Sydney Eye Hospital. Structured questionnaires were sent to patients, and the responses were evaluated. Patients were asked to assess the visibility of the scar and the significance of the scar to them on a scale of 1 (least) to 5 (greatest). RESULTS: The average age of patients was 67.9 +/- 16 years, (72% female, 28% male). Ninety-six percent of the patients were caucasians of Australian/West European descent. Sixty-one of 296 scars (20.6%) were felt to be visible by patients; 31 scars (10.5%) were rated >1 on a scale of 1 to 5 and 12 scars (4%) were rated >2. The average age of patients was highest for those patients with invisible scars, and the lowest average age was for those with scars that were rated >1. A significantly higher proportion of female patients complained of marked scarring (>1 on a scale of 1 to 5). A significantly higher proportion of patients who complained of discomfort during suture removal also complained of marked scarring. CONCLUSION: In view of the low percentage of patients who complained of marked scarring, scarring should not be the main ground for deciding the approach to DCR surgery, particularly in older patients. These results are valid for the population that was studied and may be different for different racial backgrounds.